Electrical connecter device



March .27, 1928.

R. B. BENJAMIN ELECTRICAL CQNNECTER DEVICE 2 Shets-Sheet 1 OriginalFiled Feb. 10.. 19 2 Mai'ch 27, 1928.

R. BQBENJAMIN ELECTRICAL CONNECTER DEVICE Original Filed Feb. 10, 1922 2Sheets-Sheet 2 supporting a Patented Mu. 27,1928.

' UNITED STATES PATENT 'OFFICEQ.

REUBEN BENJAMIN, OF CHICAGO, ILLINOIS, ABSIGNOB 1'0 BENJ I'AHIN ELECTRICIANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

mammar coimnc'rnn. nnvrcn.

Application med February 10, 1928, Serial Io. 685,492. Renewed September4, 1925.

My invention relates to electrical connecter devices and moreparticularly to shock-ab-' 'less means were provided to absorb thevibration.

One of the objects of my invention is to provide a.shock-absorbing'element which may readily be interposed between asupport and a lamp socket member, and which will conform to theconstruction of the lamp socket member. v

A further object of my invention is to provide improved shock-absorbinmeans for lamp socket of t e type in which the socket is mounted on aplate secured to the end of an electrical conduit.

A further object of my invention is to provide an improvedshock-absorbing lamp socket which will be durable and eflicient in usesimple in construction, and'cheap to manufacture.

Further objects will a pear from the detailed description to 0 owandfrom the ap ended claims.

clamping member 12, secured to the drawings in which an embodiment of myinvention is shown Fi re 1 is a part sectional, part elevation view of ashock-absorbing lamp socket and associated parts;

Fig. 2 is a art sectional, view on an en arged scale section being onthe line 2-'-2 of Fi .3 is a bottom lan view ofthe shockabsor ing deviceor ement, which also carriesthe wiring terminals;

Fig. 4 is a top plan view of the lamp socket member; v Fig. 5 is a topplan view of the shock-ab sorbing element or member- Figa'6 is a sectionon the line 6-6 of Fig. 5; an

Fig. 7 is a section on the line 7-7 of The construction shown'in thedrawings comprises an electric lamp socket 10 a conam 11 throu h whichthe wires leatbto the socket 10, an which serves to sup rt the socket10, a metal supporting tgeatgmilng the socket, the

art elevational- Fig. 3.

the conduit 11, a shock-absorbin means 13 for en porting the socket 10on t e late 12, a sha e 14 for the lamp 15, and a clamping member 16between which and the member 12 the flange 17 at the upper end of theshade 14i'sclam d.

The soc et 10 comprises shell and center contacts 18 and 19respectively, mounted on a lower insulating base 20, wiring terminals 21and 22 for the shell and center contacts respectively mounted on' an u rinsulat' base 23, and a pair of screws z and 25 f? securing theinsulating bases and 23 together and electrically connecting the socketcontacts 18 and 19 .with their respective wiring terminals. The screw 24asses through registering openings 26 and 2 in the bases 20 and 23respectively, and is threaded into an anchor plate 28 as indicated inFig. 5. The wirin terminal 21 is electrically connected wit theanchorage member 28 and. held in position on the'base 23 by means of ascrew 29" inserted throu h the anchorage member 28 and insulating base23, and threaded into the binding terminal 21 as indicated in Fig. 3.

The screw extends through registering openings 30 and 31 in theinsulating bases 20 and 23 respectively, and is threaded into ananchorage member 32 as indicated in Fig. 5. The wiring terminal 22 isheld in place and electricallyconnected with the anchorage member 32 bymeans of a screw 33, ex-

tending through the anchorage'member 32 and the insulating base 23 andthreaded into the binding plate of the wiring terminal i 22 (Fig. 3).

The wires 34 lead through a central opening 34 m the'insulating base 23and are connected to the binding screws of the wiring terminals 21 and22 respectively. The circuit is from the wiring terminal 22, throu hithe screw 33, anchorageplate 32, screw center contact.19, lamp circuit,shell contact 19, screw 24, anchor plate 28, and screw 29 1;; thebinding plate of the wiring terminal Coming now to the shock-absorbingmeans for so rting the'socket, these comprise opjposite y acting springmeans, acting between the supporting plate 12 and the socket 10,

one airfof sp tending to force the p tfi ha socket away from andtheother set of springs tending to force the socket toward the plate 12,the socket thus being 12 are mounted on a pair of screws 36,

threaded into the supporting plate 12, the springs 35 being-located insuitable recesses in the upper insulating base 23. In order to provide abearing for the lower endof the sprin 35, an eyelet 37 is provided, thescrew 36 being inserted through this eyelet 37 and threadedinto theplate 12.

The eyelet 37 not only serves to support the lowerend of the spring 35,but also provides a smooth sliding surface for the insulating base 25 atthe point where'the eyelet extends through the opening in this base, andfurther serves to determine the exact distance which the screw 36 isscrewed into the supporting plate 12.

The air of springs 38 which tend to force the soc et away from thesupportin plate 12 are mounted to surround a pair 0 eyelet members 39,each spring bearing at its lower end on the insulating base 23, and itsupper end on the flange of the eyelet. The eyelets thus act as bearingmembers for engaging the supporting plate 12 and as retaining membersfor the springs 38. Thus, by means of two sets of springs, the socket isyieldingly held. in counterbalanced position so that the vibration ofthe su porting plate 12 will not betransmitted to t e socket.

' It will be seen that the construction comprises broadly a support 12,a lamp socket member, and shock-absorbing device (substantially theentire construction shown in Fig. 6) interposed between the support and"the lamp socket member, and having substantially the same diameter asthe lamp socket member, this shock-absorbing device comprising a base onwhich is mounted counterbalanced spring means whereby the socketisyieldingly held in equilibrium between the oppositely acting springforces so that the vibration of the support will not be transmitted tothe socket member.

Having thus described my invention, what I' claim as new and desire tosecure by Letters Patent of the United States is:

1. A supporting member, a cylindrical lamp socket member, and acylindrical shock-absorbing device interposed between said support andsocket member, said shockabsorbing device comprising a cylindrical basehaving a recess in its upper face, a compression spring seated in saidrecess acting to push said baseaway from said suport, said base having arecess in its lower ace, and compression spring seated in said recess,acting to force said base toward said support.

2. A supporting member, a cylindrical lamp socket member, and acylindrical shock-absorbing device interposed between said support andsaid lamp socket member, said shock-absorbing device being coaxial withsaid lamp socket member, and having substantially the same diameter,said shockabsorbing device being provided with oppositely actingbalanced sprin means serving to yieldingly support sai lamp socketmember, said shock-absorbing device comprising an insulating base havinga recess in its lower face, a member extending from said support andhaving its head located in said recess, and said spring means comprisinga compression spring in said recess acting between the head of saidheaded member and the upper wall of the recess.

3. A shock-absorbing lamp socket construction comprising a lampreceptacle construction-including an insulating base and a lampreceptacle contact mountedon said base, a supporting member, andashock-absorbing and wiring terminal device interposed between saidinsulating base and support, said interposed device comprising aninsulating member and a wiring terminal for the. lamp contact mounted onsaid insulating member, spring means acting between said device andsupport tending to resist movement of said device awa from said support,and spring means acting be tween said device and support tending toresist movem nt of said device towards said support. I

4. A shock-absorbing lamp socket construction comprising a lampreceptacle construction including an insulating base and alampreceptacle contact mounted on said base, a supporting member, and ashockabsorbing and wiring terminal device interposed between saidinsulating base and. support, said interposed device comprising aninsulating member and a wiring terminal for the lamp contacts mounted onsaid insulating member, and spring-shock absorbing means acting betweensaid device and support for yieldingly supporting said lamp receptacleconstruction and interposed device.

5. A shock-absorbin socket construction, comprising a support 'avingmeans for securing it to a conduit, a receptacle construction comprisinga two-part insulating base, the two parts of which are contiguous andseparable substantially on a transverse plane, a receptacle contactmounted on one of said base parts, a wiring terminal mounted on theother of said base parts and housed by and between said base parts andaccessible for wiring when the-base parts are separated, and means foryieldingly supporting said two-parbbase on said support,-co1nprisingshock-absorbing means mounted on and carr1ed by the base part onwhich/the wiring terminal is mounted, saidwiring terminal ried by thebase part mesmebase part being apertured for the passage of the wirefrom said conduit to said wiring terminal.

6. A shock-absorbing socket construction,

comprising a support having means for securing it to a conduit, areceptacle construction comprising a two-part insulating base, the twoparts of which are contiguous and separable substantially on atransverse plane, a receptacle contact mounted on one of said baseparts, a wiring terminal mounted on the other of said base parts andhoused by and between said base parts and accessible for wiring when thebase parts are separated, and means for yieldingly supporting saidtwo-part base on said support, comprising shock-absorbing means mountedon and caron whichthe wiring terminal is mounted, said wirin terminalbase part being a' ertured for t e passage of the wire from said conduitto said wiring terminal, said shock-absorbing means comprising eyeletsslidably mounted on said wiring terminal base part, springs surroundingsaid eyelets, and screws extending through said eyelets and secured tosaid support.

7. A shock-absorbing socket construction, comprising a support. havingmeans for securing it to a conduit, a receptacle construction comprisinga two-part insulating base, the two parts of which are contiguous andseparable substantially on a transverse plane,

- receptacle a receptacle contact mounted on one of said base parts, awiring terminal mounted on the other of said base parts and housed byand'between said base parts and accessible for wiring when the baseparts and means for yieldingly supporting 581d two-part base on saidsupport, comprising shock-absorbing means. mounted on and car-' ried bythe base part on which the wiring terminal is mounted, said wiringterminal base part being'apertured for the passage of the wires fromsaid conduit to said wiring terminals, said shock-absorbing meanscomprising a plurality of springs mounted on said wiring terminal basepart and spaced circumferentially about the axis thereof. j

8. A shock absorbing socket for delicate electrical apparatus comprisinga tubular member to be secured to the nipple for the feed wires andprovided with an outwardly extending shade supporting flange, a wiringbase having .a wiring terminal thereon, means for y1eldingly supportingsaid wiring base from said flange, a-su'b-assembly comprising (1) aninsulating base, and (2) a receptacle contact mounted thereon, and meansfor securing said sub-assembly to said wiring base and electricallconnegting said contact with sai wiring terminal.

In witness whereof, I have hereunto subscribed my name.

REUBEN B. BENJAMIN.

'are separated,

